Solve 49=9+25-2*5*3*a

$$49 = 9 + 25 - 2 \times 5 \times 3 \times a$$

Solve for a

$$a=-\frac{1}{2}=-0.5$$

Steps for Solving Linear Equation

Add 9 and 25 to get 34.

$$49=34-2\times 5\times 3a$$

Multiply 2 and 5 to get 10.

$$49=34-10\times 3a$$

Multiply 10 and 3 to get 30.

$$49=34-30a$$

Swap sides so that all variable terms are on the left hand side.

$$34-30a=49$$

Subtract 34 from both sides.

$$-30a=49-34$$

Subtract 34 from 49 to get 15.

$$-30a=15$$

Divide both sides by -30.

$$a=\frac{15}{-30}$$

Reduce the fraction \frac{15}{-30} to lowest terms by extracting and canceling out 15.

$$a=-\frac{1}{2}$$